<!DOCTYPE html>
<html>
<head>
  <title>搜蝠网</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/4.1.0/css/bootstrap.min.css">
  <script src="https://cdn.staticfile.org/jquery/3.2.1/jquery.min.js"></script>
  <script src="https://cdn.staticfile.org/popper.js/1.12.5/umd/popper.min.js"></script>
  <script src="https://cdn.staticfile.org/twitter-bootstrap/4.1.0/js/bootstrap.min.js"></script>
</head>
<body>

<div class="container-fluid">
  <h1>搜蝠 售后服务网</h1>
  <div class="row">
    <div class="col-3" style="background-color:lavender;">.col-sm-3</div>
    <div class="col-3" style="background-color:lavenderblush;">.col-sm-3</div>
    <div class="col-3" style="background-color:lavender;">.col-sm-3</div>
    <div class="col-3" style="background-color:lavenderblush;">.col-sm-3</div>
  </div>
</div>


</body>
</html>